名词
中文翻译：文件标记
同义词：
['documentation', 'stamp']
例句：
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1. The filemark on the document indicates that it was signed by the president.
文件上的签名表明它是由总统签署的。
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2. The stamp on the envelope is a unique filemark for this shipment.
信封上的印记是这次发货的唯一文件标记。
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3. The company uses filemarks to track the movement of its documents.
该公司使用文件标记来追踪其文件的移动情况。